Pertunmaa

Pertunmaa () is a former municipality of Finland located in the South Savo region. The municipality was merged to the municipality of Mäntyharju on 1 January 2025.

Kuortti () is a village in the eastern part of the Mäntyharju municipality in Southern Savonia. Together with Pertunmaa's church village, it was one of the main settlement centers of the former Pertunmaa municipality until 2025. Kuortti has a population of 252. The village is located near the main road between Heinola and Mikkeli. The distance from Kuortti to Pertunmaa's church village is about 12 kilometres.